206406022 has 4 divisors (see below), whose sum is σ = 309609036. Its totient is φ = 103203010.

The previous prime is 206406019. The next prime is 206406023. The reversal of 206406022 is 220604602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 206405984 and 206406002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206406023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51601504 + ... + 51601507.

It is an arithmetic number, because the mean of its divisors is an integer number (77402259).

Almost surely, 2^206406022 is an apocalyptic number.

206406022 is a deficient number, since it is larger than the sum of its proper divisors (103203014).

206406022 is a wasteful number, since it uses less digits than its factorization.

206406022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103203013.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206406022 is about 14366.8375782564. The cubic root of 206406022 is about 590.9818201906.

It can be divided in two parts, 20640 and 6022, that added together give a palindrome (26662).

The spelling of 206406022 in words is "two hundred six million, four hundred six thousand, twenty-two".